Part Type: Remanufactured Engine Assembly (Factory Spec)
This GMC, Buick, Chevrolet, Cadillac, Saturn 3,6L engine includes the following enhancements from Fraser Engines:
- Bore and hone all cylinders to OEM clearances (We check all clearances within .0001 of inch),
- Decking cylinder head(s) and block for straightness,
- Cutting valve seats and valves to proper degree,
- Line boring/honing crankshaft/camshaft tunnels,
- Ground & polish crankshaft, new or remanufactured camshaft(s),
- New main bearings, rod bearings, pistons, piston rings, lifters, pushrods (if equipped), timing components, oil pump, head bolts,
- All new internal gaskets and seals.
- All finishing gaskets are included (MAY VARY PER APPLICATION).
The 3.6L V6 is part of GM’s family of high-durability V6 engines. Upon its release, it applied the most advanced automotive engine technology available, from state-of-the-art casting processes and full four-cam phasing to ultra-fast data processing and torque-based engine management.
The 3.6L delivers a market-leading balance of good specific output, high torque over a broad rpm band, fuel economy, low emissions, and first-rate noise, vibration and harshness control, with exclusive durability-enhancing features and very low maintenance.
Engine highlights:
- Aluminum Engine Block & Cylinder Heads: the engine block and cylinder heads are cast from A319 aluminum alloy. This aluminum-intensive construction means less weight and greater efficiency than conventional cast-iron engines – and less weight translates to improved vehicle fuel economy. The sand-mold-cast block features strong cast-in iron bore liners, six-bolt main caps, and inter-bay breather vents.
- Rotating Assembly with Oil-Spray Cooled Pistons: the crankshaft is manufactured from forged steel and the connecting rods are a sinter forging, as used on other 3.6L V6 VVT engines. The pistons are made of lightweight cast aluminum and feature a friction-reducing polymer coating on the skirts, as well as fully floating wrist pins, which also help reduce friction. Less weight in the pistons means less reciprocating mass in the engine, which in turn means less inertia and greater operating efficiency.
The V6 VVT engine family was developed with pressure-actuated oil squirters in all applications. The jets reduce piston temperature, which in turn allows the engine to produce more power without reducing long-term durability. - Direct Injection: direct injection moves the point where fuel feeds into an engine closer to the point where it ignites, enabling greater combustion efficiency. It fosters a more complete burn of the fuel in the air-fuel mixture, and it operates at a lower temperature than conventional port injection. That allows the mixture to be leaner (less fuel and more air), so less fuel is required to produce the equivalent horsepower of a conventional, port injection fuel system. Direct injection also delivers reduced emissions, particularly cold-start emissions, which are cut by about 25 percent.
- High-Pressure Engine-Driven Fuel Pump: an engine-driven high-pressure pump supplies fuel to the injectors to overcome the higher pressures inside the combustion chamber, as well as supply the multiple injection points of the direct injection nozzles. This variable-pressure high-pressure pump feeds a high-strength stainless steel fuel rail attached to the injectors.
- Dual Overhead Cams with Four Valves per Cylinder and Silent Cam Drive: four-valves-per-cylinder with inverted-tooth chain cam drive contributes to the smoothness and high output of the LFX. The engine incorporates a timing chain with an inverted tooth design. These smaller links engage at a lower impact speed, which decreases the noise generated. In conjunction with the smaller pitch chain, the number of teeth on the sprockets are increased, which increases the meshing frequency and further reduces noise and vibration.
- Variable Valve Timing (VVT): variable valve timing, or cam phasing, helps the 3.6L V6 deliver optimal performance and efficiency, and reduced emissions. It allows linear delivery of torque, with near-peak levels over a broad rpm range, and high specific output (horsepower per liter of displacement) without sacrificing overall engine response, or driveability.
- Composite Intake Manifold and Fully Isolated Composite Camshaft Covers: the upper intake manifold for the 3.6L V6 is made from composite material and provides mass savings over an aluminum manifold, with a carefully designed structure that helps ensure quiet engine operation.
